Hi,
I encountered a strange phenomenon in Stata. var1 has the following content
var1 = COGNITIVE DISORDER, GENERAL; PHASE I CLINICAL TRIAL
When I use the following, it generates 1 for var2
gen var2=1 if strpos(var1, "PHASE I")
When I use the following, it generates 30 for var3
gen var3=(strpos(var1, "PHASE I"))
I am really curious how State gives 30? Can anyone help?
Ray.
I encountered a strange phenomenon in Stata. var1 has the following content
var1 = COGNITIVE DISORDER, GENERAL; PHASE I CLINICAL TRIAL
When I use the following, it generates 1 for var2
gen var2=1 if strpos(var1, "PHASE I")
When I use the following, it generates 30 for var3
gen var3=(strpos(var1, "PHASE I"))
I am really curious how State gives 30? Can anyone help?
Ray.
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